Stake bunk



W. G. WHITE STAKE BUNK May 3, 1949.

Filed Nov. 17, 1947 3 Sheets-Sheet l INVENTOR. WILLIAM 6, WHITE ATTORNEYy 3, 1949. w. G. WHITE 2,469,093

STAKE BUNK Filed Nov. 17, 1947 3 Shets-Sheet 2 INVENTOR. WILLIAM G WHITEATTORNEY W. G. WHITE STAKE BUNK Ma a, 1949.

Filed Nov. 17, .1947

3 Sheets-Sheet 3 INVENTOR. WILLIAM G, WHITE ATTOR N [Y Patented May 3,1949 UNITED STATES OFFICE STAKE BUNK William G. White, Aberdeen, Wash.Application November 17, 1947, Serial No. 786,406

7 Claims.

This invention relates to stake type bunks and is particularly adaptedto logging trucks and trailers.

The primary object of the invention is to provide pivo-tally mountedstakes that can be securely locked in a, vertical position relative tothe bunk.

A further object of the invention is the provision of a stake lockingmechanism that can be safely and easily unlocked permitting the stakesto pivot at their lower ends, their upperends falling from an uprightvertical position to a hanging vertical position relative to the bunk.

These and other incidental objects will be apparent in the drawings,specification and claims.

In the drawings:

Figure l is a plan view of stake bunk.

Figure 2 is a fragmentary enlarged side view of one end of the bunk,viewed from line 2-2 of Fig. 1.

Figure 3 is a fragmentary end view of the bunk taken on line 3-3 ofFigure 1, partially broken away for convenience of illustration.

my new and improved Figure 4- is a sectional view taken of the bunk 4 online d4 of Figure 1. This view illustrates the'stake in vertical andlocked position.

Figure 5 is a fragmentary enlarged view taken on line 55 of Figure 4.

Figure 6 is a sectional view similar to Figure 4 illustrating one of thestakes in lowered or unlocked position.

Figure 7 is a perspective view of one of the stakes removed from thebunk.

Figure 8 is a perspective view of one of the stakes removed from thebunk assembly.

Figure 9 is a fragmentary sectional view of the bunk having the stakeremoved therefrom and illustrating the guideway in which the stakeoperates.

Referring specifically to the drawings:

In my drawings, I indicate my new and improved stake bunk by numeral l,the same consisting of a rectangular box-like assembly having side walls3 and a central partition 4 with a top plate 5 and bottom plates 6. Theplates 6 provide brace members between the side walls 3 as well assupports for the internal working parts to be described later. The bunkhas a base plate 2 forming part thereof and is what is known in theterms of logging trucks as a fifth wheel. In the drawings I only showthe part of this wheel that is associated with the bunk, the other halfnot here shown forms part of the truck or trailer to which the bunk ismounted.

The main and outstandin feature of the invention is the method ofmounting the stakes 1 and 8. Located on the lower ends 9 of the stakesare protruding bosses it, these bosses are adapted to work within theguideways ll formed within the ends of the bunks.

Referring particularly to Figure 9, the guideways i l consist of avertical inner guide I 2 and an inclined outer guide l3 with ahorizontal bottom guide Hi, all of the said guides being formed on theinner sides of the side wall 3 and partition t. A locking bar I5 ispivotally connected at one end between the bifurcated lower end 9 of thestake l at Hz at its one end and having rollers ll journalled to the pinl8 at its opposite end. Stops H) are fixedly mounted on the bottomplates 5 and are adapted to stop the end movement of the locking bar i5when the rollers I! are in the location indicated in Figure 4, namely,against the outer end 20 of the stop l9.

A locking mechanism, consisting of the pivotally mounted stop 2| holdsthe cam rollers I1 in the down position when the lever 22, located onthe outside of the bunk, is in the position illustrated in Figure 2. Thelever 22 is connected to the stop 2| by the stub shaft 23 and forms partthereof. A stop 24 is pivotally mounted to the bunk at 25 and has anoutwardly extending pin 26 forming part thereof and normally rests inthe position shown in Figure 2 preventing the lever 22 from moving inthe direction of the arrow. A permanent stop 2'! prevents the lever 22from moving to the opposite direction.

Referring back to Figure 4, the bosses ll] of the stake rest upon thehorizontal bottom guide l4 of the guideways I l and between the sides ofthe guides l2 and 13, the locking bar l5 securely holding the stake inthe position shown.

I will now describe the operation of lowering the stake to the positionshown in Figure 6. The stop 24 is revolved in the direction of thearrow. The lever 22 is then raised in the direction of the arrow to thebroken line position, after which the stop 24 is moved back to itsbroken line position, thereby holding the lever 22 in a raised positiontogether with the stop 2!. When the stop 2! is removed from above theroller I1 a pinch bar is then inserted at the point 28 (Fig. 4) raisingthe locking bar !5 and cam rollers i! above the stop l9 permitting thebar IE to travel in the direction of the arrow and thereby lowering thestake.

It will be noted in Figure 6 that the bosses l0 have raised within theguide members ll, while the locking bar l5 has lowered resting on thebase plate 6. Also it will be noted that the elbow 30 of the lower ends9 of the stake is bearing against the vertical guides l2 forcing thebosses l away from the said guides l2 against the oppositely disposedguide l3, which slopes outwardly at its upper end from the bunk,permitting the movement of the bosses l0 away from the guide I2. Theobject of this movement is to prevent the lockingrollers l1 disposed atthe opposite end ofalthalockingibarr l2 from droppingdown behind thestops l'9 when the stake is in lowered position.

When it is ator grasps the desired to raise the stake the operend 3! ofthe stake, raisesithe same to the vertical position at which time thecam rollers I! will drop over the end 'zflwif the stop l9 after whichthe stop=24 willibe-operzated by the operator, allowing the lever 22 toassume is original position as shown in Figure 2,.bringing the stop 2|in line with the rollers preventing the said rollers iromrbeconiing@disen'gaged 1' from the stop iilfl auntil 'rit -.is-;1desired to lower:the stake again. rBy permitting-the pivot-bosses .mto :fioatWithinttherguideways H a minimum of .height' is requiredaw-ithinthehunkjforthe 'operationof the locking bar l5, still giving ,aqnaximum-of'-:-l-everagevwhenthelstakeisin raised position. An identioalstructure is provided for the stake -85 but; in reverseposition, v:on:the opposite side :of the-. partitioned, asa shown :in Figures 3-and 5.

ETlmis structuresassembl-yawith its'locking mechanismiis :theprimaryobject of my invention, althoughill dotn-otwishrto be limitedto-the-exact meohanioalsstructure asa-otherrmechanical equivalents:irnay .be substituted still czcorn-ing within thei-scope of my wclaims.

what isqclaimed as new, is:

1m stake bunk comprising an elongated housing: having :a longitudinallyextending :central partition jseparating said "housing into twocompartments, :an .:opening iformed in ".the top; .of said housing ateach :end and into T0116 of "said compartments, slots formed in therendspf said compartments fromnsaid openings andsextending partiallyalong :the @bottom walls -:th ereof, an upright "partition extendinginwardly of isaid compartmentsto and adjacent .the' inner ends :of said:sloits sand acooperating with the .end "and bottom Walls-containing'sai-d slots to definexopen topped opzposed recesses, stakes'mounted inthe open sends .of said housing-and :having lateral bosses eextendinginto said ireoesses uto provide floating fulcrums f'for the stakes, andindividual means iincluding .a bar :for :releasably retainingsaidestakeswin-upright operative position.

:2.%A :stake rbunk comprising -an elongated housingihaving 1alongitudinally extending central partition separating said housing :into:two compartments,-.an opening formediin :the :top .LOf saidhousingvat-eachend :andinto one of :said compartments, :slots :formed-in.the "ends of said compartment-s from said openings and extendingpartially along the bottom walls thereof, upright partitions extendinginwardly of said compartments to and adjacent the inner ends of saidslots and cooperating with the end and bottom walls containing saidslots to define open topped opposed recesses, stakes mounted in the openends of said housing and having lateral bosses extending into saidrecesses to be supported thereby while permitting pivotalmovementfbetween positions eexten'xiing ':?downwardly through saidbottom slots' and upwardly 'through said openings, and individual meansfor releasa-bly retaining said stakes in upright operative ,--position,and comprising a bar freely positioned "longitudinally in each of saidcompartments, oeaohofsisaidibars being pivotally connected tolthelstakemounted ,in.the ends of the respective compartments, stopmeans in the opposite ends :ofesaidicompartments, and catch means in thefree ends of said bars for cooperating with said stop .means "to retainsaid :stakes in .upright position.

3. A stake bunk as defined in claim 2 whereina latch is mounted-adjacent:said step .means for selectively blocking. said -.ca-t.ch. means.

A. A. stakelounk. as.-.defined in-claim. 2 -wherein a latch is mountedadjacent said stop means for -selectinelylalockingsaid catchmeans, andalsecondlatchis.mountedaadjacent said latch forlselectivelyblockingsaidlatch.

$5.. -A.stake hunk asdefinedinhlaimfl wherein the;.'free :end ..of said.bar .is recessed to receive a prying; tool iorlifting .sa'idlbar torelease-said catch meansiromsaid stop. means.

f6. Astaire-bunk as defined. in ..claim i1 wherein each ofthe stakes isprovided .wi-tha. shoulder for abutting .the inner edges v.of saidrecesses when'the stake is'lowered. to prevent its-bar from moving. tovlockedmosition.

A .stake bunk comprising .an elongated housing, open at one end andformed with opposed inwardly ;extendingisubstantially U :shaped flanges,.the .inner surfaces ".of -.the front .legs -.-of the flanges .beinginclined upwardly, a :stake having outwardly extending bosses in theinner open 'enfd..of .theihousing, .the bosses beingeconfinedanfiig-ui'ded'ihetween;the, flanges .to ,provide a fioatinglfu-olrum,.aibar .pivotedto the stake, means "for operating the .bar .to;.-raiseand-lower the stake on itsfloating fulcrum, and means-for lockingthebarinits raisedor lowered position.

.WILLIAM G. WHITE.

,UNITED STATES PATENTS Number 7 Name Date 2,131,337 c swertfeger -Sept.27, 1938 (2,216,614 iBoyer A-ug. 6, 1940

